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Letters .Patent No. 625,909, flared S'npfmnlwr 17,1867.

IMPROVEMENT IN' DERRICK.

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TO ALL WIIOM IT MAY CONGERN:

Be it known that I, A. B. SPROUT, of Picture Rocks, in thc county of Lycoming, and the State of Pennsylvania, have invented a Vnew and useful Derrick foriItaising Hay andother material which I style a Hay or other Derricki and Ido hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, referenee'being had to the annexed drawings, making a part of this specification.

The nature of my invention consists in se constructing a` hay er other derrick that whenl the weight is being dra-wn up only one straight shaft is required, the weight passing along the side-and on alstraight line with said shaft, and when the weight is suliiciently raised, then forming an arm fronithe upper portion of the derrick by means of a joint in the'same by which said -uppcr vportion et` the dei-rick is turned from a straight line to an angle and the weight deposited at the place desir-ed.

v To enable others skilled'in the art to make and use my invention, I will proceed to describe its construction and operation. I l 4 I first make a frame of theA shape et' the letter T out et' pieces ot"timber three by seven inches, land one piece about sixteen feet long, and Ithe-other eight, as seen at A A A A, in Figures 1 and 3, andlput two mortises.

in said frame at the place where the pieces join, as seen at `r: c. I then take two pieces ot' timber marked BB, fig. 3, and put them together in a firm manner by fastening to-theml boards, one seen at D, fig. 3, and another on the opposite side. The pieces B B, I make of timber about three by seven inches at one end and two by seven inches at the other, and make tenons on the large ends and set them in the mortises, as seen -at c'c. I then take a piece of timber marked F FF, as seen in figs. 1, 2, and 3, about twelve feet long, three by seven inches, and

taper it about two-thirds of its length so that the small end is about three by our inches, and atthe smallend i I put a pulley marked PI P, as seen in figs. 1, 2, and 3,- with side pieces ss and top piece t, as seen in figs. 1

and 3, which pulley I place projecting over the edge of the piece F toward the side of the derrick where the weight is to be deposited, se that when the borse is backed the weight causes the upper portion of the derrick te take thc position denoted by the red lines, as seen in ig. 1. Near the end of piece F, I- put an eye or staple, as seen in iigal and 2, marked gg'. I then slip the piece F between the pieces BB, so that the tapered end en which the pulley I is on is--about eight feet above the point where the pinlh is seen infigs. 1,2, and 3; `I

then bore a hole entirely through the three pieces and put therein the pin or bolt markedh. I then take arope about six feet long and at one end attach a weight, as seen at in, figs. 1 and 2, and at the otherend of the rope I attach an eye or staple, which is driven into the end of the 'piece F, as 'seen at dd, figs. 1 and 2,'whch rope passes over the pulley E, which pulley is placed between the pieces B B about six feet from `the pulley z', as seen at E, figs. 1 and Q. This weight and rope are to hold the swinging piece F in position in the following manner: When the weight m is at the lower .part of the derrick they, hold the piece F in a straight line with the pieces B B. When the weight m is at the pulley E, the piece F is held in the position denoted by the red lines in fig. 1, the rope easily passing over the pulley E. By the lengthening or shortening of thisA rope, the angle in the derrick'when turned from a straight line is regulated as desired. I then pass the rope n under the pulley t',

through the eye or staple g, and over the pulley P, as Vseen irrig. 1', and to the end of the rope, at j, Ilattach a horse hay-fork, (when I pitch hay and at the other end of the rope, at c, the horse is attached.

The operation is as follows: The load ofhay isfplaced over the rope between the derrick and where the, horse is attached at c. The rope passing under the wagon between the front and hind wheels, the operator with a trip-rope attached to the fork draws the fork, and thc rope passes through the eye y, and over the pulley P, until the fork will come to the hay on the wagon, the horse then being at lc. The operator then fastens the fork -in the hay and the horse is driven directly away from vthe load and derrick; the rope then passing over the pulley P, and through the eye g', and under the pulley which causes the hay to rise on a straight line with the dei-rick until itis raised to the proper height, when' the driver backs the horse and the piece/F assumes the position denoted by the red li'ne's, as seen in iig. 1. Then the operator by -means of the trip-rope of the hay-fork discharges the hay on the stack. After the hay 'is discharged theuveight m falls from the pulley E tor the stack isnished.

What I claim as my invention, and desire to secure by Letters Patent, isA

the bottom of the-derrick, which returns the piece F teau upright position. rThe operation is repeated until 1. A derrck provided with a. pivoted shaft, F, made operative through the medium of the rope n, substantially as herein described and for the purpose set forth. l

2. In combination with the "above, the pulleys P and 11, :md guide g, constructed, arranged, :md opcrn'tingsubstantially as herein described and for the purposeset forth,

3. The combination of the weight m, `puliey'E, and rope X, with the 'pvoted shaft F, constructed, arranged, and operating sbstantially in the manner herein described and for the purpose set forth.

` A. B. SPROUT.

Witnesses:

WM. B. WAUGH, A. B. GATE. 

